Polygon defg is shown on the coordinate grid. polygon defg is dilated with the origin as the center of dilation using the rule (x, y) → (2x, 2y) to create polygon d'e'f'g'.

which statement is true?

a) polygon d'e'f'g' is larger than polygon defg, because the scale factor is greater than 1.

b) polygon d'e'f'g' is smaller than polygon defg, because the scale factor is less than 1.

c) polygon d'e'f'g' is smaller than polygon defg, because the scale factor is greater than 1.

d) polygon d'e'f'g' is larger than polygon defg, because the scale factor is less than 1.

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?